Communication apparatus and control method for the communication apparatus
a communication apparatus and control method technology, applied in the direction of frequency-division multiplex, instruments, separation processes, etc., can solve the problems of inability to communicate with the master station, long startup period of apparatus types, and need expensive components
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
embodiment 1
[0038]FIG. 5 shows a time point when the potential of the D+ line is pulled up according to an embodiment 1. Referring to FIG. 5, the HW diagnosis starts at time t1, and the initializations of the SW and IF module 21 start respectively at time t2 and time t3. The initialization of the IF module 21 is completed at time t4, and the initialization of the SW is completed at time t5.
[0039] In the embodiment 1, the pull-up of the potential of the D+ line is carried out at the time t3 when the initialization of the IF module 21 starts. Therefore, the pull-up control section 22 monitors the IF module 21, and turns on the switch 24 so as to pull up the potential of the D+ line when the pull-up control section 22 detects the start of the initialization of the IF module 21, or simultaneously with an instruction of the IF module initialization being issued.
[0040] The IF module 21 generally starts up within a period shorter than the period Ta shown in FIG. 4, and thus the master station 10 has...
embodiment 2
[0041]FIG. 6 shows a time point when the potential of the D+ line is pulled up according to an embodiment 2. Referring to FIG. 6, the HW diagnosis starts at the time t1, and the initializations of the SW and IF module 21 start respectively at the time t2 and the time t3. The initialization of the IF module 21 is completed at the time t4, and the initialization of the SW is completed at the time t5.
[0042] In the embodiment 2, the pull-up of the potential of the D+ line is carried out at time t6 when a period T1 has elapsed since the initialization of the IF module 21 starts. Therefore, the pull-up control section 22 monitors the IF module 21, and starts the measurement of the period T1 when the pull-up control section 22 detects the start of the initialization of the IF module 21, or simultaneously with the instruction of the IF module initialization being issued. When it is detected that the period T1 has elapsed, the pull-up control section 22 turns on the switch 24 so as to pull ...
embodiment 3
[0044]FIG. 7 and FIG. 8 show time points when the potential of the D+ line is pulled up according to an embodiment 3. Referring to FIGS. 7 and 8, the HW diagnosis starts at the time t1, and the initializations of the SW and IF module 21 start respectively at the time t2 and the time t3. The initialization of the IF module 21 is completed at the time t4, and the initialization of the SW is completed at the time t5.
[0045] In the embodiment 3, the pull-up of the potential of the D+ line is carried out at time t7 when a period T2 has elapsed since the peripheral apparatus 2 is turned on. When the peripheral apparatus 2 is turned on, namely, when the pull-up control section 22 is started up, the pull-up control section 22 starts the measurement of the period T2. When the period T2 has elapsed, the pull-up control section 22 turns on the switch 24 so as to pull up the potential of the D+ line. Note that the time t7 may be either during the SW initialization as shown in FIG. 7, or during ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| time | aaaaa | aaaaa |
| power | aaaaa | aaaaa |
| electric potential | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More